Unit 3 Vocab Flashcards
Only matrices of the same ___ can be added or subtracted.
dimension
A number in a matrix is called a(n) ___.
element
A determinant will have a(n) ___, and the matrix will have an inverse if the determinant is not zero.
Reciprocal
A(n) ___ is a rectangular array of numbers.
Matrix
Cramer’s Rule is a method of calculating the solution to a system of linear equations by finding the ___ of the determinants.
Quotients
A related matrix formed by making the rows of a matrix into columns and the columns into rows is called a(n) ___.
Transpose
Elementary row ___ are row switching, row multiplication, and row addition.
Operations
Before you can multiply two matrices together, the number of ___ in the first matrix must equal the number of rows in the second matrix.
Columns
A(n) ___ matrix is formed by adding a column of the constant terms to the coefficient matrix of a linear system.
Augmented
Cramer’s Rule will not work if the determinant of the coefficient matrix is equal to ___.
Zero
A coefficient matrix is formed from the coefficients of the ___ of a system of linear equations.
Variables
Row addition is adding a(n)___ of one row to another row of a matrix.
Multiple
Row ___ is multiplying a row of a matrix by a nonzero constant.
Multiplication
Elementary row ___ are row switching, row multiplication, or row addition.
Operations
Row switching is interchanging two ___ of a matrix.
Rows
